Subtract 21/72 from 35/24
1st number: 1 11/24, 2nd number: 21/72
35/24 - 21/72 is 7/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
35/24 = 35 × 3/24 × 3 = 105/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72 - Subtract the two like fractions:
105/72 - 21/72 = 105 - 21/72 = 84/72 - After reducing the fraction, the answer is 7/6
- In mixed form: 11/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/24-21/72 35/24-42/72 35/48-21/72 35/24-63/72 35/72-21/72